Thadeosaurus is an extinct genus of diapsid reptiles from the late Permian Lower Sakamena Formation of Madagascar. The genus contains a single species, Thadeosaurus colcanapi, known from several speci
Surface model of the T. colcanapi holotype, with details not visible in the natural mold and silicone cast shown in blue
Tangasauridae is an extinct family of diapsids known from fossils found in Late Permian to Early Triassic rocks in Madagascar, Kenya and Tanzania. Fossils have been found of members of this family in